The purpose of this study was to identify parental influences on physical activity behaviours of children with disabilities. One hundred and forty-eight parents of children with disabilities responded to a survey about factors related to parent and child physical activity, parental support and belief in their child's abilities regarding physical activity. The results of multiple regression revealed that parents' perceived competence of their child's physical ability and parental support were the key factors of promoting physical activity behaviours of children with disabilities. Findings from this study should be utilised to inform parents on the ways that they can be most helpful for improving the physical activity experiences of their children.